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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






2. Can survive ~7 days in cow. vast majority <48 hours






3. 19-23 (21) days






4. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






5. Contains and regulates the temp of the testes for sperm production






6. Scar tissue plugs up chambers of udder






7. ~305 days (altough often longer due to breeding difficulties)






8. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






9. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






10. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






11. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






12. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






13. 283 days






14. What makes the milk flow through the mammary glands?






15. Microscopic - make sure not sterile - very few bulls are actually tested






16. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






17. 10-37 (21) days






18. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






19. (LH) stimulates the Leydig cells to produce testosterone






20. Important 'landmark' during palpation






21. Parturition is controlled by...






22. 1-2 days






23. Larger the cow - more milk is produced; smaller the cow - less milk is produced






24. Why Dairy calves are fed powdered milk.






25. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






26. Days which have decreasing daylight hours

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27. Luteolysis happens because of the ____________ hormone






28. Animals which have many estrous periods per year (ex: cow - sow)






29. Check feet and legs - look for masculine traits in build such as crest and muscling






30. Sperm is produced here






31. 1. brain function - 2. blood flow - 3. willing female






32. 26 hours after estrus begins






33. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






34. Not under a timeline - cow can not be sold as steak






35. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






36. 114 days






37. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






38. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






39. Duct through penis that carries sperm and urine






40. When are dairy cattle dehorned?






41. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






42. (male) pushes the testes outward toward the legs for a cool-down off of the body






43. 24 hours before end of estrus cycle






44. Superior genes are _______ to multiply






45. Actual heat cycle (period)






46. 26 hours after estrus begins






47. Way to know everything is alright with the breeding male






48. 1. brain function - 2. blood flow - 3. willing female






49. 283 days






50. 30 hours after estrus begins







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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